Zip Code 78628
Georgetown, Texas — Williamson County
📍 ZIP code 78628 is in Georgetown, Williamson County, Texas.
ZIP code 78628 is located in Georgetown, Williamson County, Texas. It is a zip code in the Central (CST/CDT) Time Zone with an estimated population of 44,821. The area code for ZIP code 78628 is 512.
Quick Answer
Zip code 78628 is in Georgetown, Texas (Williamson County). It has a population of 44,821, median household income of $117,198, and median home value of $467,700.
Population
44,821
Income
$117,198
Home Value
$467,700
Climate
96°F / 36°F
About Zip Code 78628
Zip code 78628 is located in Georgetown, Texas, within Williamson County. Home to approximately 44,821 residents, this area sits at an elevation of 927 ft and falls within the Central (CST/CDT) timezone. The local area code is 512.
The median household income is $117,198 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $467,700, and the cost of living index is 149 (49% above the national average of 100).
Summers average a high of 96°F while winters drop to 36°F. The area receives about 37 in of rain annually. The zip code covers 73.3 square miles of land area and 1.3 square miles of water.
Key Statistics
44,821
$117,198
$467,700
Central (CST/CDT)
512
927 ft
73.3 sq mi
41.5
17,738
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Compare With Nearby Zip Codes
| Metric | 78628 | 78681 | 78626 | 78642 | 78641 | 78613 |
|---|---|---|---|---|---|---|
| City | Georgetown, TX | Round Rock, TX | Georgetown, TX | Liberty Hill, TX | Leander, TX | Cedar Park, TX |
| Population | 44,821 | 58,531 | 45,020 | 24,146 | 93,399 | 89,162 |
| Median Income | $117,198 | $136,215 | $94,967 | $128,086 | $131,421 | $120,829 |
| Home Value | $467,700 | $460,000 | $358,500 | $486,800 | $453,100 | $461,900 |
| Cost of Living | 149 | 156 | 120 | 160 | 151 | 151 |
| Median Age | 41.5 | 39 | 33.8 | 36.8 | 36.7 | 37.3 |
Cost of Living
100 = National Average. Georgetown's cost of living is 49% above the national average.
vs. State Avg
Above
Affordability
Expensive
Income-to-Home
4.0x
Demographics
Zip code 78628 has a population of 44,821 people with a median age of 41.5. There are 17,738 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Georgetown (78628) population trend from 2010 to 2024
↑ 30.4%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
96°F
36°F
37 in
0 in
Georgetown experiences hot summers with average highs around 96°F. Winters are mild with lows averaging 36°F. The area receives virtually no snowfall.
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Housing & Economy
Median Home Value
$467,700
Median Household Income
$117,198
With 17,738 housing units across 73.3 square miles, 78628 has a housing density of 242 units per square mile. The home price-to-income ratio is 4.0x.
Location & Geography
Latitude
30.6645°
Longitude
-97.7786°
Land Area
73.3 sq mi
Water Area
1.3 sq mi
Nearby Zip Codes
Zip codes closest to 78628 (Georgetown, TX) with distances:
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ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 78628's $117,198. A way to compare Georgetown to economically similar communities elsewhere in the country.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
ZIP Codes with Similar Demographics
The five U.S. ZIP codes whose racial and ethnic composition most closely matches 78628 (Georgetown, TX). Similarity is measured by cosine distance on the five-category ACS demographic vector.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
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People Also Ask
What zip code is Georgetown, Texas?
Georgetown, Texas uses zip code 78628.
What county is zip code 78628 in?
Zip code 78628 is located in Williamson County, Texas.
What is the population of zip code 78628?
The population of zip code 78628 is 44,821 with a median age of 41.5.
Is 78628 in Georgetown, Texas?
Yes, zip code 78628 is in Georgetown, Williamson County, Texas. The area code is 512.
Frequently Asked Questions
What city is zip code 78628 in?
Zip code 78628 is in Georgetown, Texas. It is part of Williamson County and uses the Central (CST/CDT) timezone.
What is zip code 78628?
Zip code 78628 is a U.S. postal code in Georgetown, Texas (Williamson County). It has a population of 44,821 and covers 73.3 square miles.
What is the population of zip code 78628?
The population of zip code 78628 (Georgetown, TX) is 44,821 with a median age of 41.5. There are approximately 17,738 housing units in this area.
What is the median income in zip code 78628?
The median household income in zip code 78628 (Georgetown, TX) is $117,198 per year. The cost of living index is 149 (100 = national average).
What is the average home price in zip code 78628?
The median home value in zip code 78628 (Georgetown, TX) is $467,700. The cost of living index is 149 compared to the national average of 100.
What county is zip code 78628 in?
Zip code 78628 is located in Williamson County, Texas. The primary city is Georgetown.
What is the area code for zip code 78628?
Zip code 78628 in Georgetown, TX uses area code 512. It is located in the Central (CST/CDT) timezone.
Is zip code 78628 a good place to live?
Zip code 78628 (Georgetown, TX) has a cost of living index of 149 (100 = national average), a median household income of $117,198, and median home values of $467,700. The median age is 41.5. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 78628?
The cost of living index for zip code 78628 (Georgetown, TX) is 149, where 100 represents the national average. This area is above the national average. Median home value: $467,700.
What schools serve zip code 78628?
Zip code 78628 in Georgetown, Texas is served by the local school district of Williamson County. For specific school information, check your state's department of education or GreatSchools.org.
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.
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Data Sources
- Population, income, housing, age, and demographics
- U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
- ZIP to city and county mapping
- USPS and HUD-USPS ZIP-County Crosswalk.
- Time zones and area codes
- IANA tz database and NANPA.
- Elevation
- U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
- Last refreshed
- 2026-05-18.